@if(count($errors)>0)
    <div class="alert alert-danger">
            <h4>有错误发生：</h4>
        <ul>
            @foreach($errors->all() as $error)
                <li>
                    <span class="glyphicon glyphicon-remove">{{$error}}</span>
                </li>
        </ul>
        @endforeach
    </div>
@endif